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fix bug in John's code with cache file /dev/null

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This commit is contained in:
David MacKenzie 1995-03-07 00:38:46 +00:00
parent 0f53fcad1b
commit e71f08e5ba
2 changed files with 10 additions and 10 deletions
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10
acgeneral.m4
View File

@ -889,7 +889,7 @@ fi
dnl AC_CACHE_SAVE()
define(AC_CACHE_SAVE,
[cat > $cache_file.$$ <<\EOF
[cat > confcache <<\EOF
# This file is a shell script that caches the results of configure
# tests run on this system so they can be shared between configure
# scripts and configure runs. It is not useful on other systems.
@ -911,19 +911,19 @@ dnl Allow a site initialization script to override cache values.
# and sets the high bit in the cache file unless we assign to the vars.
(set) 2>&1 |
sed -n "s/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=\${\1='\2'}/p" \
>> $cache_file.$$
>> confcache
changequote([, ])dnl
if cmp -s $cache_file $cache_file.$$; then
if cmp -s $cache_file confcache; then
:
else
if test -w $cache_file; then
echo "updating cache $cache_file"
cat $cache_file.$$ > $cache_file
cat confcache > $cache_file
else
echo "not updating unwritable cache $cache_file"
fi
fi
rm -f $cache_file.$$
rm -f confcache
])
dnl The name of shell var CACHE-ID must contain `_cv_' in order to get saved.

10
lib/autoconf/general.m4
View File

@ -889,7 +889,7 @@ fi
dnl AC_CACHE_SAVE()
define(AC_CACHE_SAVE,
[cat > $cache_file.$$ <<\EOF
[cat > confcache <<\EOF
# This file is a shell script that caches the results of configure
# tests run on this system so they can be shared between configure
# scripts and configure runs. It is not useful on other systems.
@ -911,19 +911,19 @@ dnl Allow a site initialization script to override cache values.
# and sets the high bit in the cache file unless we assign to the vars.
(set) 2>&1 |
sed -n "s/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=\${\1='\2'}/p" \
>> $cache_file.$$
>> confcache
changequote([, ])dnl
if cmp -s $cache_file $cache_file.$$; then
if cmp -s $cache_file confcache; then
:
else
if test -w $cache_file; then
echo "updating cache $cache_file"
cat $cache_file.$$ > $cache_file
cat confcache > $cache_file
else
echo "not updating unwritable cache $cache_file"
fi
fi
rm -f $cache_file.$$
rm -f confcache
])
dnl The name of shell var CACHE-ID must contain `_cv_' in order to get saved.